Fastening-inserting machine



May 16, 1.933. lF. MacKENzlE 1,909,359

FASTENING- INSERTING MACHINE ,//Vf/E/v TUH- thu. w'hw Mmmm May I6, 1933. F. L. MacKENzlE 1,909,369

FASTENING- INSERTING MACHINE Filed Sept. 25, 1930 2 Sheets-Sheet 2 Patented May 16, 1933 UNITED STATES. PATENT oFrics a FRED I.. MACKENZIE, or BEVERLY, MASSACHUSETTS, AssIeNoR. Vro UNITED vsIIOIi MACHINERY CORPORATION, OF PAfrERsON, NEw:rnRsnY, A CORPORATION or, NEW

JERSEY FAsrENINe-INSERTING MACHINE Application mea september 25, 1930. seriai No. 434,380.'Y

This invention relates to fastening-inserting machines and work-gages therefor and is illustrated herein as embodied in a fastening-inserting machine provided with a workgage particularly adapted for use in heelseat nailing in the manufacture of boots and shoes.

In the manufacture of shoes it is customary to fasten the heel-seat portion of the Outsole to the shoe upper and insole by driving nails or pegs through the outsole, upper and insole in a line extending from the heel breast line rearwardly around the heelend of the shoe. In attaching the heel-seat portion of the outsole to the heel-seatportion of the other parts of the shoe it is usual to insert the fastening along the straight side ofthe shoe relatively close to the edge of the shoe, while at the back of the shoe where the outsole is afterwards trimmed Off at its greatest angle to conform to the shape of the heel it is desirable that the'fastenings be inserted further from the edge of the shoe to prevent Contact between the shaving knife and the heel-seat fastenings at this point. In view of this, it is an Object of the present invention to provide an improved work-gage adapted for use, for example in heel-seat nailing, by which the location of the edge of the sole of the shoe with respect to the fastening-inserting instrumentalities of the machine is varied according as the fastenings are being inserted in a portion of the sole which has a straight or a curved edge.

With this object in view, and in accordance with a feature of the invention, the illustrated machine is provided with a novel work-gage comprising a pair of Yfreelyrotatable rolls arranged to engage the work,

one on each side of the line Of drive of the fastenings, to guide the work as it is fed past the fastening-inserting instrumentalitiesg-of the machine, said rolls being adjustable relatively to each other' so that the relation of a 4 shoe the rear part of the counter portion of which is engaged by the rolls may be adjusted, for example, to compensate for the differences in curvature of that part of shoes of different sizes.

It is a further Object of the invention to happen if the rear partl ofv thecounter po'rtion jof aV shoe were caught or4 jammed between the two rolls of such a gage. With this 'obj ect in view, the two rolls of the illustrated kgage are so interconnected that as one rollv is moved rearwardly under pressure applied through the work during 'the feeding movement thereof the other rollvis moved to an" equal v extent forwardly.4 Thus variations'in the relative positions ofthe twofrolls toward and from the work substantially equalize each other so that therolls follow, it may vbe' said, the edge of the work without varying substantially the relation lof the work piece to the fastening-inserting instrumentalitiesof i the machine. Y

A further feature of the yinvention residesl Vin means for adjusting the rolls relatively to y each other transversely of the work to determine the point of operation of the fasteninginserting instrumentalitie's of the -machine with respect to the curved portion ofthe heelseat of the shoe without affecting the relation of the fastening-inserting instrumentalities to the edge of the work as fastenings are v1nserted along the straight sides `of the heelseat portion of the shoe.

tures in vi'ew, the invention Vwill now be 'de-' scribed vin connection with the accompanyingl drawings and will be pointed out in ,the

claims."

In the drawings,

Vith the vabovejand 'other objects and fea- 80 Fig. 1 is a side elevation of the head of a fastening-inserting machine embodying the l present invention; Fig. 2 visa side elevation, on an enlarged scale,showing the work-gage includedin Fig. l and attached to the presser plate or abutment of the machine;

FigjS is a side elevationof the work-gage shownin' Fig. 2 viewed from the opposite side of the machine;l y

Fig. 4 is a vplan view'of the work-gage shown in Fig. 2; i

Figs. 5, 6 and 7 are detail views of portions of the work-'gage lshown in Figs.v 2 and 3;

Fig. 8 is aldiagrammatic vie-w showing the position of the gage rolls relatively to the edge of the work as fastenings are inserted around the curved portion of the work and, by dotted lines, the relative positions of the rolls as fastenings are inserted along the straight sides of the work; and

Fig. 9 is a diagrammatic View showing two positions of the gage rolls in contact with the edge of the work and the positions of the fastenings with respect to the edge of the work, the spacing of the gage rolls relatively to each other and the spacing of the fastenings relatively to the edge of the work being somewhat exaggerated for purposes of illustration.

While the invention may be embodied in various types of fastening-inserting machines, it is illustrated herein as embodied in a loose nailing machine of the type disclosed in Letters Patent of the United States No. 1,030,77 5, granted June 25, 1912, on an application filed in the name of George Goddu. The machine is provided with suitable fastening-inserting instrumentalities arranged to insert fastenings in succession in a workpiece held by a work support 20 against a presser plate or work abutment 22 and including an awl 24 by which the work-piece, illustrated as a shoe 25 having a counter portion 27 and an outsole 29, is fed step by step to andpast the driver guide and driver of the machine. It will be understood that the awl 24 is constructed and arranged to make fastening-receiving holes in the work-piece presented to the machine as well as to feed the work-piece between the insertion of successive fastenings.

The illustrated machine is provide-d with novel gage mechanism illustrated as a whole at 26 in Figs. 1, 2 and 3 and in detail in the other figures. The gage mechanism 26 is carried by a bracket 28 pivotally secured to a second bracket 30 slidably connected to the presser plate 22. The upper surface of the bracket 30 is held against the under side of the presser plate 22 by a bolt 32 passing through a slot 34 formed in the bracket 30. The bracket 30 is provided with a slot 36 in longitudinal alinement with the slot 34 and arranged to receive a pin 38. carried by the presser plate 22. The bracket 30 is provided with rack teeth 40 with which mesh the teeth of an adjusting pinion 42 journaled in suitable bearings carried by the presser plate 22. The teeth of the pinion 42 mesh with the teeth of a second pinion 44 formed on the end of a transversely extending shaft 46 journaled in a bearing 49 carried by the presser plate 22. A thin plate 50 secured to the presser plate 22 by screws 52 is provided with a series of holes 54 concentric with the fulcrum of the handle 48 and arranged to cooperate with a spring-pressed plunger 56 carried by the handle 48 to maintain the handle 48 and bracket 50 in any position of adjustment to which they may be moved. A pair of guide members 58, 58 pivotally connected to the bracket 28 at 60 are each provided with a way to receive a pair of slide members 62, 62. Carried at the forward end of each of the slide menabers 62, 62 are a pair of gage members or rolls 70, freely rotatable about parallel axes and mounted for movement in a plane substantially perpendicular to said axes, said rolls being adapted to enter the crease between the outsole and the upper of a shoe to guide the shoe as it is presented to the operating instrumentalities of the machine. rThe slide members 62, 62 are provided with rack bars 64, 64, the teeth of which mesh with substantially diametrically opposite portions of a pinion 66 fulcrumed upon a stud 68 carried by the bracket 28 and upon which each of the guide members 58, 58 are pivoted. Jlt will be readily seen that the slides 62, 62 are so interconnected that movements of the two slides are always rectilinear or in straight lines and are always equal in extent but opposite in direction.

As illustrated, particularly in Fig. 5, the

guide members 58, 58 are mounted for relative adjustment toward and from each other. A hand screw 72 having a right and left hand thread is threaded into a pair of blocks 74, 74 pivotally connected to the ouidc mombers 58, 58, so that movement of the screw 72 by means of a nut 76 will vary the spacing of th-e rolls 70, 7 O from each other.

operator in accordance with the radius or curvature of the rear of the counter portion rhis ad- 1 justment of the rolls permits the Vcurved porof the shoe to be operated on and in accordance with the distance from this curved por- 'f tion of the work at which the fastenings are to be inserted. In order to hold the rolls 70, 70 in adjusted position a spring-pressed locking pin 78 (shown best in Fig. 7, but` also indicated in Fig. 6) carried by a block 79 secured to the bracket 28 by Vmeans of a screw-and-slot connection is arranged to ongage one of a series of teeth formed on a wheel 8O fast to the screw 72.

A slot 81 (Fig. 5) formed in the block 7 9 partially surrounds the wheel and holds the whe-el 80 against lateral movement.

In order that the rolls 70, 70 may be heldl yieldingly against undesired vertical move- Y ment the bracket 28 is provided with a rearward extension having a slot 84 formed therein through which passes a screw 82 carriedV by the bracket 80. The screw 82 is provic ed at its lower end with an adjusting nut and is surrounded by a pair of springs 86, 88 i which bear against washers contacting with the opposite faces of the bracket 28 adjacent to the slot 84. The rolls 70, 70 may be j adjusted vertically by movement of the nut y 90.

ln the operation of the fastening-inserting machine, the awl is moved in a substantially straight line subsequently to its projection into the work to bring the opening thus made in the work in alinementvwith the' driver of the machine. 1n order that the work may be eflectivel guided the rolls 70, V are mounted and connected in such a way that if one roll is moved rearwardly under pressure appli-ed through the work by means of the awl or `by the operator the other roll is moved to an equal extent forwardly. While this floating movement of the rolls is ample to protect the work from being caught or jammed between the two rolls and therefore from-being marred in any way, it is not suliicient to have any appreciable effect on the distance between the line of drive and the edge of the work-piece. Thus the fastenings are inserted in a row substantially parallel to the approximately straight portions of the edge of the sole at the sides of the heelseat, and on a smooth curve at the rear of the heel-seat, the fastenings at the curved portion of the row being further from the edge than those at the straight portions.

The operation of the device will be apparent from an inspection of Figs. 2, 3 and l of the drawings. The rolls 70, 70 may be adjusted toward and from the line of feed of the work by means of the operating handle t8 and spaced relatively to each other in vthe direction of the feed by movement of the hand screw'72. By adjustment ofthe handle 48 theedge of the work maybe brought relatively close to the line of drive. `Vihen, however, the curved part at the rear of the counter portion of the shoe enters between the rolls 70, 70, the fastenings will be spaced further from the edge of the sole. Moreover, the spacing of the fastenings from the curved edge of this portion of the sole may be varied by adjustment of the rolls 70, 70 toward and away from each other in the direction of the feed of the work by means of the hand screw 72. Thus the fastenings may be inserted along the curved portion of the heel-seat at the desired distance from the edge of the work without varying the point of operation of the fastening-inserting instrumentalities with respect to the edge of the work as the fastenings are inserted along the straight sides of the heel-seat portion of the shoe.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

l. A. gage for a shoe machine comprising two rolls mounted to rotate freely on spaced parallel axes and movable in a plane substantiallyperpendicular to said axes, and connections between the two rolls constructed and arranged to control the positions of the two rolls so that rectilinear movement of one roll in a direction away from the work causes equal rectilinear movement ofthe other roll in a direction toward the work.

2. A gage for a shoe machine comprising two rolls mounted to rotate freely on spaced parallelaxes andl freely movable'in a plane substantiallyperpendicular to said axes, and

gearing between the two rollsconstructed and movements of the two slides are equal in eX- f tent but opposite in direction, and a'pair of members at the forward end of each of the slides formed and arranged to be en aged by a shoe to be operated upon and to 'guide the shoe as it is presented to the operating instrumentalities of the machine.

t. A; gage for a shoe machine having, in combination, a pair of slide members each provided witha rack, guides in which 4the slide members `Vare mounted for endwi'se movement,` a pinion diametrically f opposite portions of which engage the respective raclrs whereby any movements of the two slides are equal in extent but opposite in direction, and f a pair of rolls, one carried at the forward end of each of the slides, formed'and arranged to be engaged by a shoe to be operated upon and to guide the shoe asv it is presented to the operating instrumentalities of the machine.

5. A. gage for a shoe machine having, inV

combination, a pair of guide members mount ed for relative adjustment toward and from f each other, a pair of slides, one carried by each of the guide members, a pair of rolls, one mounted at the forward end of each of the slides and arranged for rotation about parallel axes, and connections between the slides so that they can have only equal and substantially opposite movements in the guide members. I

6. A gage for a shoe machine having, in combination, apair of guide members mounted for relative adjustment toward 'and from each other, a hand screw connected tothe guide members and arranged by its rotation to move the forward ends of the guide members toward and from each other, a pair of slides, one carried by each of the guide members, a pair of rolls, one mounted at the forward end of'each of the Vslides and arranged for rotation about parallel axes, and cenneetions between the slides so that they can have only equal and substantially opposite movements in the guide members. l y

7 A fastening-inserting machine having,

in combination, an awl constructed and ar-v Cil to feed the work-piece between the insertion of successive fastenings, and a gage to position the work while it is presented to the machine comprising a pair of work-engaging members spaced somewhat from each other and positioned one on either side of the line of drive, said members being mounted for equal but opposite movement toward and from the work-piece whereby movement of the members under pressure applied through the work-piece does not aect substantially the relation of the work-piece to the fastening-inserting instrumentalities of the machine.

8. A fastening-inserting machine having, in combination, an awl constructed and arranged to make fastening-receiving holes in a work-piece presented to the machine and to feed the work-piece between the insertion of successive fastenings, and a gage to position the work while it is presented to the machine comprising a pair of rolls spaced somewhat from each other and positioned one on either' side of the line of drive, said rolls being mounted for equal but opposite movement toward and from the work-piece whereby movement of the rolls under pressure applied through the work-piece is effective to prevent marking of the work by the rolls but does not affect substantially the relation of the work-piece to the fastening-inserting instrumentalities of the machine.

9. A fastening-inserting machine having, in combination, an awl, means for operating said awl to cause it to form a fastening-receiving hole in a work-piece and to feed the work into fastening-receiving position, fastening-inserting means, and a work gage to position the work while it is presented to the machine comprising a pair of work-engaging members initially adjusted to determine the relative positions of the fastenings and the edge of the work as fastenings are inserted in the work, said members being mounted for equal but opposite movement toward and from the work-piece, thereby preventing the work-engaging members from marring the work.

l0. A fastening-inserting machine having, in combination, a presser plate, a bracket slidably connected thereto, a pair of guide lnembers pivotally secured to the bracket, a pair of slides carried by the guide members, a pair of rolls, one mounted at the forward end of each of the slides and arranged to engage the edge of a work-piece presented to the machine, connections between said slides whereby the rolls move substantially equal distances in opposite directions, means for adj Listing the rolls with respect to the fasteninginserting instrumentalities of the machine to determine the point of operation of the fastening-inserting instrumentalities with respect to the edge of substantially straightedged portions of the work-piece, and means for adjusting the rolls relatively to each other to determine the point of operation of the fastening-inserting instrumentalities with respect to the edge of curved portions of the work-piece without affecting the relation of the work-piece to the fastening-inserting instrumentalities as fastenings are inserted along the substantially straightedged portions of the work.

11. A fastening-inserting machine having, in combination, a presser plate, a bracket slidably connected thereto, a pair of guide members pivotally secured to the bracket, a pair of slides carried by the guide members, a pair of rolls, one mounted at the forward end of each of the slides and arranged to engage the edge of a work-piece presented to the machine, connections between the slides carrying the rolls such that when one slide is moved in one direction the other slide is moved an equal distance in substantially the opposite direction, means for adjusting the rolls with respect to the fastening-inserting instrumentalities of th-e machine to determine the point of operation of the fastening-inserting instrumentalities with respect to the edge of substantially straight sides of the work-piece, and a hand screw connected to the guide members and arranged by its rotation to move the rolls relatively to each other to determine the point of operation of the fastening-inserting instrumentalities with respect to the edge of curved portions of the workfpiece without affecting the relation of the work-piece to the fastening-inserting instrumentalities as fastenings are inserted along the substantially straight sides of the work.

In testimony whereof I have signed my name to this specification.

FRED L. MACKENZIE. 

